Table 3 Direct allowed band gap values of RPET with Nd2O3 doping (1, 2, 4, and 8 wt.%).

From: Functionalized recycled polyethylene terephthalate plastic by rare earth oxide for electronic device and housing infrastructure applications

Elements

Eg (eV)

RPET

3.75

RPET + Nd2O3 1 wt.%

3.69

RPET + Nd2O3 2wt.%

3.65

RPET + Nd2O3 4wt.%

2.50

RPET + Nd2O3 8wt.%

2.25

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